Home / 144,557.64-199,489.53-80,907.72

Finding the Fourth Proportional to 144,557.64, 199,489.53 and 80,907.72

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Solution

The fourth proportional to 144,557.64, 199,489.53 and 80,907.72 is: 111,652.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,557.64 : 199,489.53 = 80,907.72 : x
  2. Step 2: Convert to fraction form
    144,557.64/199,489.53 = 80,907.72/x
  3. Step 3: Cross multiply
    144,557.64x = 199,489.53 × 80,907.72
  4. Step 4: Simplify right side
    144,557.64x = 16,140,243,036.17
  5. Step 5: Solve for x
    x = 16,140,243,036.17/144,557.64
  6. Step 6: Final answer
    x = 111,652.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.